EP 0499004 B1 19960214 - Process for manufacturing fiber reinforced ceramic materials by chemical vapor infiltration
Title (en)
Process for manufacturing fiber reinforced ceramic materials by chemical vapor infiltration
Title (de)
Verfahren zur Herstellung eines faserverstärkten keramischen Verbundwerkstoffs
Title (fr)
Procédé de production de matériau céramique à renfort de fibres
Publication
Application
Priority
EP 91400405 A 19910215
Abstract (en)
[origin: EP0499004A1] A process for manufacturing fiber reinforced ceramic material by chemical vapor infiltration by simultaneously providing a temperature gradient in the material and a combined pulsed pressure-temperature conditions in the CVD enclosure. A gas mixture comprising a nitrogen hydride and a gas selected from the group comprising silicon hydrides or silicon halides or a mixture thereof is injected in the enclosure for obtaining a silicon nitride deposition to fill up said material. The temperature gradient is provided by the use of a cold wall CVD enclosure along with an asymetrical heating of the material in said enclosure. <IMAGE>
IPC 1-7
IPC 8 full level
C04B 35/584 (2006.01); C04B 35/80 (2006.01); C23C 16/04 (2006.01)
CPC (source: EP)
C04B 35/584 (2013.01); C04B 35/80 (2013.01); C23C 16/045 (2013.01)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0499004 A1 19920819; EP 0499004 B1 19960214; DE 69117166 D1 19960328; DE 69117166 T2 19960704
DOCDB simple family (application)
EP 91400405 A 19910215; DE 69117166 T 19910215